Fluke 323 User manual
May 2012 Rev.1, 06/15
© 2012-2015 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
323/324/325
Clamp Meter
Users Manual
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LIMITED WARRANTY AND LIMITATION OF LIABILITY
This Fluke product will be free from defects in material and workmanship for two
years from the date of purchase. This warranty does not cover fuses, disposable
batteries, or damage from accident, neglect, misuse, alteration, contamination, or
abnormal conditions of operation or handling. Resellers are not authorized to
extend any other warranty on Fluke’s behalf. To obtain service during the warranty
period, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that Service Center with a
description of the problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH
AS FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSED OR IMPLIED.
FLUKE IS NOT LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR
THEORY. Since some states or countries do not allow the exclusion or limitation of
an implied warranty or of incidental or consequential damages, this limitation of
liability may not apply to you.
11/99
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i
Table of Contents
Title Page
Introduction.................................................................................................................1
How to Contact Fluke.................................................................................................1
Safety Information ......................................................................................................2
How to Clean the Product ..........................................................................................9
Specifications .............................................................................................................10
Electrical Specifications..........................................................................................10
Mechanical Specifications......................................................................................12
Environmental Specifications.................................................................................12
The Meter...................................................................................................................14
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1
Introduction
The Fluke 323/324/325 Clamp Meter (the Product) measures ac and dc voltage, ac current,
resistance, and continuity. The 324 and 325 can also measure capacitance and contact
temperature. The 325 can also measure dc current and frequency. Note that the 325 is shown
in all of the illustrations. For temperature measurement, you must use the included K-Type
Thermocouple.
Warning
Read "Safety Information" before you use the Product.
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323/324/325
Users Manual
2
Safety Information
A Warning identifies conditions and procedures that are dangerous to the user. A Caution
identifies conditions and procedures that can cause damage to the Product or the equipment
under test.
Table 1 tells you about symbols used on the Product and in this manual.
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Clamp Meter
Safety Information
3
Warning
To prevent possible electrical shock, fire, or personal injury:
•Use the Product only as specified, or the protection supplied by the
Product can be compromised.
•Use only correct measurement category (CAT), voltage, and amperage
rated probes, test leads, and adapters for the measurement.
•Do not touch voltages > 30 V ac rms, 42 V ac peak, or 60 V dc.
•Carefully read all instructions.
•Hold the Product behind the tactile barrier. See Clamp Meter, item .
•Do not exceed the Measurement Category (CAT) rating of the lowest
rated individual component of a Product, probe, or accessory.
•Do not measure current while the test leads are in the input jacks.
•Do not use the Product around explosive gas, vapor, or in damp or wet
environments.
•Limit operation to the specified measurement category, voltage, or
amperage ratings.
•Do not work alone.
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323/324/325
Users Manual
4
•Do not apply more than the rated voltage, between the terminals or
between each terminal and earth ground.
•Comply with local and national safety codes. Use personal protective
equipment (approved rubber gloves, face protection, and flame-
resistant clothes) to prevent shock and arc blast injury where
hazardous live conductors are exposed.
•Replace the batteries when the low battery indicator shows to prevent
incorrect measurements.
•The battery door must be closed and locked before you operate the
Product.
•Measure a known voltage first to make sure that the Product operates
correctly.
•Remove all probes, test leads, and accessories that are not necessary
for the measurement.
•Only use probes, test leads, and accessories that have the same
measurement category and voltage rating as the Product.
•Keep fingers behind the finger guards on the probes.
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Clamp Meter
Safety Information
5
•Connect the common test lead before the live test lead and remove the
live test lead before the common test lead.
•Remove all probes, test leads, and accessories before the battery door
is opened.
•Do not use the Product if it is damaged.
•Disable the Product if it is damaged.
•Do not use the Product if it operates incorrectly.
•Do not use test leads if they are damaged. Examine the test leads for
damaged insulation, exposed metal. Check test lead continuity.
•Before each use, examine the Product. Look for cracks or missing
pieces of the clamp housing. Also look for loose or weakened
components. Carefully examine the insulation around the jaws. See
Clamp Meter, item .
•Examine the case before you use the Product. Look for cracks or
missing plastic. Carefully look at the insulation around the terminals.
•Read all safety Information before you use the Product.
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323/324/325
Users Manual
6
•Remove batteries to prevent battery leakage and damage to the Product
if it is not used for an extended period.
•Remove batteries to prevent battery leakage and damage to the Product
if is to be stored above its operating temperature.
•Do not use a current measurement as an indication that a circuit is safe
to touch. A voltage measurement is necessary to know if a circuit is
hazardous.
Caution
To avoid possible damage to the Product or to equipment under test, use a
thermocouple rated for the temperatures to be measured. The Product is
rated for -10.0 °C to +400.0 °C and 14 °F to 752 °F. The included type-K
thermocouple is rated to 260 °C.
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Clamp Meter
Symbols
7
Symbols
Table 1. Symbols
Symbol Meaning Symbol Meaning
AC (Alternating Current) Earth
DC (Direct Current) AC and DC Current
Conforms to European Union
directives. WARNING. RISK OF DANGER.
Battery Consult user documentation.
Double insulated WARNING. HAZARDOUS VOLTAGE.
Risk of electric shock.
Certified by CSA Group to
North American safety
standards. Conforms to relevant Australian
standards.
Certified by TÜV SÜD Product
Service. Application around and removal from
uninsulated hazardous live conductors
is permitted.
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